ASAHI KASEI

[AK5359]

MS0428-E-00

2005/09

- 3 -

PIN / FUNCTION

No.

Pin Name

I/O

Function

1

AINR

I

Rch Analog Input Pin

2

AINL

I

Lch Analog Input Pin

3

CKS1

I

Mode Select 1 Pin

4

VCOM

O

Common Voltage Output Pin, VA/2

Bias voltage of ADC input.

5

AGND

-

Analog Ground Pin

6

VA

-

Analog Power Supply Pin, 4.5

∼ 5.5V

7

VD

-

Digital Power Supply Pin, 3.0

∼ 5.5V

8

DGND

-

Digital Ground Pin

9

SDTO

O

Audio Serial Data Output Pin

“L” Output at Power-down mode.

10

LRCK

I/O

Output Channel Clock Pin

“L” Output in Master Mode at Power-down mode.

11

MCLK

I

Master Clock Input Pin

12

SCLK

I/O

Audio Serial Data Clock Pin

“L” Output in Master Mode at Power-down mode.

13

PDN

I

Power Down Mode & Reset Pin

“H”: Power up, “L”: Power down & Reset

The AK5359 must be reset once upon power-up.

14

DIF

I

Audio Interface Format Pin

“H”: 24bit I

“L”: 24bit MSB justified

15

CKS2

I

Mode Select 2 Pin

16

CKS0

I

Mode Select 0 Pin

Note: All input pins except analog input pins (AINR, AINL) should not be left floating.

Handling of Unused Pin

The unused input pins should be processed appropriately as below.

Classification

Pin Name

Setting

AINL

This pin should be open.

Analog

AINR

This pin should be open.